Ladle

Gas stirring in a ladle is of one the basic processes of a steelmaking meltshop. It serves to homogenise the composition and temperature of the metal bath. Furthermore, it serves to remove inclusions from the metal bath. CFD modelling of steelmaking ladles is a part of the doctoral thesis project of E. Ramasetti. His work is concerned on improving the efficiency of alloying in ladle metallurgy. A physical model has been constructed and employed for validation purposes. Here, sulphuric acid has been employed as a tracer substance.

Results

Publications

  1. N. Alia, M. Pylvänäinen, V.-V. Visuri, V. John, and S. Ollila, "Investigation of the vibrations of a laboratory-scale gas-stirred ladle with two eccentric nozzles and multiple sensors", Journal of Iron and Steel Research International, forthcoming.
  2. E. K. Ramasetti, V.-V. Visuri, P. Sulasalmi, R. Mattila, and T. Fabritius, "Modelling of the Effect of the Gas Flow Rate on the Fluid Flow and Open-Eye Formation in a Water Model of a Steelmaking Ladle", Steel Research International, vol. 90, no. 2, article 1800365, 2019.
  3. E. K. Ramasetti, V.-V. Visuri, P. Sulasalmi, and T. Fabritius, "A CFD and Experimental Investigation of Slag Eye in Gas Stirred Ladle", Journal of Fluid Flow, Heat and Mass Transfer, vol. 5, pp. 78–86, 2018
  4. E. K. Ramasetti, V.-V. Visuri, P. Sulasalmi, and T. Fabritius, ”Numerical Simulation of the Effect of Slag Thickness on Slag Eye Area in a Water Model Ladle”, Proceedings of the 21st Australasian Fluid Mechanics Conference 2018, Australasian Fluid Dynamics Society, Australia, forthcoming.
  5. T. Palovaara, V.-V. Visuri, and T. Fabritius, "Physical modelling of gas injection in a ladle", Proceedings of the 7th International Congress on Science and Technology of Steelmaking, Associazione Italiana di Metallurgia, Venice, Italy, no. 55, 2018.
  6. E. K. Ramasetti, V.-V. Visuri, P. Sulasalmi, and T. Fabritius, ”A CFD and Experimental Investigation of Slag Eye in Gas Stirred Ladle”, Proceedings of the 5th International Conference on Fluid Flow, Heat and Mass Transfer, Niagara Falls, Canada, no. 148, 2018.
  7. E. K. Ramasetti, V.-V. Visuri, P. Sulasalmi, A. Kärnä, and Timo Fabritius, "Numerical Study of Multiphase Flows in a Ladle for Different Closure Models", Proceedings of the 11th Pacific Symposium on Flow Visualization and Image Processing, Kumamoto University, Kumamoto, Japan, no. 19, 2017.

Theses instructed

  1. T. Palovaara, “Physical Modelling of Gas Injection in a Ladle”, Master's thesis, 2017.